xfs: don't let memory failures leak blocks and kill repairs

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98445
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-18 16:16:54 UTC
Updated2026-10-19 10:18:53 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: xfs: don't let memory failures leak blocks and kill repairs LOLLM complains that a memory allocation failure in xrep_newbt_add_blocks results in online repair leaking blocks that were previously allocated to write a new btree, but the problem is worse than that -- a limitation of the codebase is that the callers cannot undo the transaction /and/ return the error -- either you undo all changes and commit the transaction, or you error out and the filesystem goes down. However, the new btree space reservation object isn't that big (~48 bytes). Let's just do a NOFAIL allocation and the problem goes away.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected be408417630427984a1fddd069f30b245793234c 3380151cf0ce8ad0c1d356fed51e4b69e1d28e50 git Not specified
CNA Linux Linux affected be408417630427984a1fddd069f30b245793234c b15c79fca28060fd9c7e77f2c3ebc4ba023974e8 git Not specified
CNA Linux Linux affected be408417630427984a1fddd069f30b245793234c 0e0d3372a84029da1768c7a4c4601484af5b58a2 git Not specified
CNA Linux Linux affected be408417630427984a1fddd069f30b245793234c ab1c416d2377cdc16123ef521aac4da1c468c3d4 git Not specified
CNA Linux Linux affected 6.8 Not specified
CNA Linux Linux unaffected 6.8 semver Not specified
CNA Linux Linux unaffected 6.12.113 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.56 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.9 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/ab1c416d2377cdc16123ef521aac4da1c468c3d4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0e0d3372a84029da1768c7a4c4601484af5b58a2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3380151cf0ce8ad0c1d356fed51e4b69e1d28e50 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b15c79fca28060fd9c7e77f2c3ebc4ba023974e8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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